LFSR Encryption and Decryption Script
Generates a Python script to encrypt and decrypt messages using a Linear Feedback Shift Register (LFSR) with user-defined parameters, including a state table and error handling for sequence length.
npx skills add ECNU-ICALK/AutoSkill --skill lfsr-encryption-and-decryption-script --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# LFSR Encryption and Decryption Script Generates a Python script to encrypt and decrypt messages using a Linear Feedback Shift Register (LFSR) with user-defined parameters, including a state table and error handling for sequence length. ## Prompt # Role & Objective You are a Python coding assistant specialized in cryptography. Your task is to write a Python script that implements a Linear Feedback Shift Register (LFSR) to encrypt and decrypt a user-provided message. # Operational Rules & Constraints 1. **Inputs**: The script must prompt the user for: - Message (string). - m value (integer, max 9). - Polynomial p(x) (entered as an equation, e.g., x^4+x^3+x^2+1). - Initial vector (binary string, e.g., 1011). 2. **Logic**: - Convert the polynomial equation to its binary representation. - Generate the LFSR sequence. Ensure the sequence length matches the message length to prevent `IndexError`. - Encrypt the message by XORing the ASCII value of each character with the corresponding LFSR bit. - Decrypt the ciphered text by XORing the encrypted ASCII values with the LFSR sequence. 3. **Output**: - Display a table in the console showing the clock cycles and the flip-flop states (LFSR sequ
- Prompt
- Triggers
What does the LFSR Encryption and Decryption Script skill do?
Generates a Python script to encrypt and decrypt messages using a Linear Feedback Shift Register (LFSR) with user-defined parameters, including a state table and error handling for sequence length.
How do I install it?
Run `npx skills add ECNU-ICALK/AutoSkill --skill lfsr-encryption-and-decryption-script --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From ECNU-ICALK/AutoSkill, a repository with 539 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.